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Spatial organization of the 130-kb chromatin region containing the α-globin locus and the flanking housekeeping genes. The cross-linking patterns of the fragments XV (A), II (B), III (C), V (D), and XVII (E) next to promoters of α1, C16orf33, C16orf8, MPG, and α2, respectively, are shown. All symbols and color patterns are the same as in Fig. 3.
